Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

Connect in the morning. The same 70-minute layover misses 3% of the time at 10 am and 18% of the time at 8 pm.

Nonstops


United	SNA	IAH	3h 12m	88%	0.0%	1,092	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included (Houston is 2 h ahead of Santa Ana). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	SNA 12:05 → SEA 14:54AS 548	2h 39m Seattle	SEA 17:33 → IAH 23:59AS 1579	9h 54m	99%	86%
Alaska Details →	SNA 18:46 → SEA 21:34AS 454	2h 23m Seattle	SEA 23:57 → IAH 06:20 +1AS 398	9h 34m	100%	81%
United Details →	SNA 19:27 → SFO 21:05UA 5339 · flown by SkyWest	3h 40m San Francisco	SFO 00:45 → IAH 06:34 +1UA 604	9h 07m	99%	80%
United Details →	SNA 13:08 → DEN 16:30UA 2132	3h 58m Denver	DEN 20:28 → IAH 23:59UA 2419	8h 51m	99%	79%
United Details →	SNA 14:47 → SFO 16:18UA 2823	2h 36m San Francisco	SFO 18:54 → IAH 00:59 +1UA 1702	8h 12m	95%	78%
Delta Details →	SNA 07:15 → SLC 10:15DL 1185	3h 30m Salt Lake City	SLC 13:45 → IAH 17:53DL 1299	8h 38m	97%	78%
United Details →	SNA 10:20 → DEN 13:43UA 2843	1h 52m Denver	DEN 15:35 → IAH 19:10UA 489	6h 50m	100%	78%
United Details →	SNA 07:00 → SFO 08:31UA 1604	3h 44m San Francisco	SFO 12:15 → IAH 18:27UA 1387	9h 27m	99%	76%
Tight connection: often missed
United Details →	SNA 10:37 → ORD 16:53UA 2426	52m Chicago	ORD 17:45 → IAH 20:50UA 1954	8h 13m	71%	54%
United Details →	SNA 13:08 → DEN 16:30UA 2132	48m Denver	DEN 17:18 → IAH 20:55UA 1585	5h 47m	59%	43%
United Details →	SNA 09:45 → SFO 11:21UA 5562 · flown by SkyWest	54m San Francisco	SFO 12:15 → IAH 18:27UA 1387	6h 42m	26%	20%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

SEA · 1h 10m · leaves 06:47 3%

DEN · 1h 18m · leaves 06:45 3%

PHX · 1h 06m · leaves 09:49 4%

Afternoon and evening

ORD · 52m · leaves 10:37 29%

DFW · 58m · leaves 16:34 35%

DEN · 48m · leaves 13:08 41%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Southwest WN 3868 SNA 08:50 → SMF United UA 1949 SMF 13:15 → IAH Connection details →	3h 00m	8h 20m	100%	88%
Alaska AS 1325 SNA 06:47 → SEA United UA 2293 SEA 11:55 → IAH Connection details →	2h 13m	9h 48m	99%	88%
Southwest WN 345 SNA 11:50 → AUS United UA 1871 AUS 19:44 → IAH Connection details →	2h 54m	7h 05m	100%	84%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON